f/overrides/event-backup/gtsax-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

476 B

1DateDividends
21998-12-180.499000
32005-12-162.252000
42013-12-132.188000
52015-12-113.237000
62018-12-143.028000
71997-12-110.272000
82006-12-152.240000
92017-12-133.444000
102019-12-133.166000
112022-12-160.813000
122000-12-151.807000
132007-12-143.524000
142008-12-120.878000
152011-12-090.523000
162012-12-072.732000
172025-12-182.953000
181999-12-170.540000
192014-12-126.558000
202016-12-133.055000
212020-05-131.269000
222020-12-155.351000
232021-12-1614.137000
242001-12-140.029000